I stayed here for three weeks and wasn't really comfortable in the room unfortunately. The bathroom would smell like Bangkok's canals sometimes without warning, like every other day for a few hours. Also I encountered 3 cockroaches in the room during my 3 weeks there, even though I never cooked nor brought food into the apartment. I also couldn't see the sky from the apartment unless I leaned over the balcony. It just had a view of the parking garage, with no greenery.
If you're looking for a central location next to lots of street food for a few days and you only plan to be in the apartment to sleep then it might be fine for you. But considering how that's technically illegal in Thailand unless you stay longer than a month, I can't recommend this place for as long as a month. I'd stay in a hostel or a cheap hotel somewhere else.